Tag: 100-200

Chemical composition of essential oil of Excoecaria acerifolia collected from Kumaun Himalayas was written by Rawat, Kavita;Parasad, Kundan;Bisht, Ganga. And the article was included in World Journal of Pharmaceutical Research in 2017.Computed Properties of C4H7NS The following contents are mentioned in the article:

The hydro-distilled essential oil of Excocaria acerifolia has been examined by means of gas chromatog.-mass spectrometry (GC-MS). The oil constituents were identified according to their mass spectra and their relative retention indexes determined on a non-polar stationary phase capillary column. Fifty-seven constituents have been identified representing 93.37% of the total oil. The main compounds in major amounts were Iso-Pr isothiocyanate (14.03%), (E)- Caryophyllen (11.65%), Benzyl isothiocyanate (9.32%), 1, 3, 8- paramenthatriene (6.61%), the compound in trace or in minor amount were n-hexanol (0.06%), 2-Ethyl-5-Me THF (0.06%), the oil was found rich in oxygenated mono and sesquiterpene hydrocarbons. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Computed Properties of C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Computed Properties of C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Synthesis and Coordination Chemistry of 3,4-Ethylene-Bridged 1,1,2,5-Tetrasubstituted Biguanides was written by Dehmel, Maximilian;Vass, Valentin;Prock, Lukas;Goerls, Helmar;Kretschmer, Robert. And the article was included in Inorganic Chemistry in 2020.COA of Formula: C4H7NS The following contents are mentioned in the article:

The synthesis of 3,4-ethylene-bridged 1,1,2,5-tetrasubstituted biguanides is reported, which are accessible by three alternative routes. Exemplary mol. structures of the ligand and an observed side product have been elucidated by x-ray diffraction anal. Mono- and dinuclear complexes of the biguanide in both its neutral and monoanionic forms were obtained, including examples of aluminum, copper, magnesium, potassium, tin, and zinc, indicating a versatile coordination behavior, as evidenced by single-crystal x-ray diffraction anal. A new class of electron-rich N,N’-bidentate ligands is reported, and mono- and dinuclear complexes of the new ligand in both its neutral and monoanionic form were obtained. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8COA of Formula: C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.COA of Formula: C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Synthesis and Coordination Chemistry of 3,4-Ethylene-Bridged 1,1,2,5-Tetrasubstituted Biguanides was written by Dehmel, Maximilian;Vass, Valentin;Prock, Lukas;Goerls, Helmar;Kretschmer, Robert. And the article was included in Inorganic Chemistry in 2020.Name: Isopropylisothiocyanate The following contents are mentioned in the article:

The synthesis of 3,4-ethylene-bridged 1,1,2,5-tetrasubstituted biguanides is reported, which are accessible by three alternative routes. Exemplary mol. structures of the ligand and an observed side product have been elucidated by x-ray diffraction anal. Mono- and dinuclear complexes of the biguanide in both its neutral and monoanionic forms were obtained, including examples of aluminum, copper, magnesium, potassium, tin, and zinc, indicating a versatile coordination behavior, as evidenced by single-crystal x-ray diffraction anal. A new class of electron-rich N,N’-bidentate ligands is reported, and mono- and dinuclear complexes of the new ligand in both its neutral and monoanionic form were obtained. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Name: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Name: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Investigation of achromatic micro polarizer array for polarization imaging in visible-infrared band was written by Li, Peng;Kang, Guoguo;Vartiainen, Ismo;Wang, Fangzhou;Liu, Ying;Tan, Xiaodi. And the article was included in Optik (Munich, Germany) in 2018.Recommanded Product: Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:

The design and fabrication of a micro polarizer array (MPA) for polarization imaging is described for visible-IR region. The MPA, composed of 1280 × 1024 elements, is designed to be integrated directly onto the CMOS chip. Each micro polarizer consists of a 200-nm-period Al wire grating with the dimension of 5.2 μm × 5.2 μm, and the performance of gratings with finite number of periods and gradient ridge-length has been thoroughly investigated. The grating ridge of each polarizer orients four different directions offset by 45°, which determines different polarization directions correspondingly. Initial test and experiment for the MPA are performed and the crosstalk caused by diffraction is discussed. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Recommanded Product: Ethyl 3-ethoxypropanoate).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Recommanded Product: Ethyl 3-ethoxypropanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Efficient synthesis of unsymmetrical trisubstituted 1,3,5-triazines catalyzed by hemoglobin was written by Li, Fengxi;Wang, Chunyu;Xu, Yaning;Zhao, Zixian;Su, Jiali;Luo, Chenhan;Ning, Yujie;Li, Zhengqiang;Li, Chen;Wang, Lei. And the article was included in Molecular Catalysis in 2021.Category: esters-buliding-blocks The following contents are mentioned in the article:

In this work, a green and efficient process for the synthesis of unsym. trisubstituted 1,3,5-triazines from isothiocyanate with amidines and 1,1,3,3-tetramethylguanidine was developed. Under optimal conditions (isothiocyanate (0.1 mmol), amidines (0.1 mmol), 1,1,3,3-tetramethylguanidine (0.1 mmol), DMSO (1 mL), hemeprotein (heme concentration: 0.05 mol%), TBHP (3 equiv), room temperature, 10 min), high yields of 1,3,5-triazines (81%-96%) was obtained when HbRb (Hb from rabbit blood) was used as the catalyst. This enzymic method demonstrates the great potential for the synthesis of unsym. trisubstituted 1,3,5-triazines and extends the application of enzyme catalytic promiscuity in organic synthesis. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Category: esters-buliding-blocks).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Efficient synthesis of unsymmetrical trisubstituted 1,3,5-triazines catalyzed by hemoglobin was written by Li, Fengxi;Wang, Chunyu;Xu, Yaning;Zhao, Zixian;Su, Jiali;Luo, Chenhan;Ning, Yujie;Li, Zhengqiang;Li, Chen;Wang, Lei. And the article was included in Molecular Catalysis in 2021.Synthetic Route of C4H7NS The following contents are mentioned in the article:

In this work, a green and efficient process for the synthesis of unsym. trisubstituted 1,3,5-triazines from isothiocyanate with amidines and 1,1,3,3-tetramethylguanidine was developed. Under optimal conditions (isothiocyanate (0.1 mmol), amidines (0.1 mmol), 1,1,3,3-tetramethylguanidine (0.1 mmol), DMSO (1 mL), hemeprotein (heme concentration: 0.05 mol%), TBHP (3 equiv), room temperature, 10 min), high yields of 1,3,5-triazines (81%-96%) was obtained when HbRb (Hb from rabbit blood) was used as the catalyst. This enzymic method demonstrates the great potential for the synthesis of unsym. trisubstituted 1,3,5-triazines and extends the application of enzyme catalytic promiscuity in organic synthesis. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Synthetic Route of C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Evolution of aromatic compounds in grape wines fermented with and without the addition of ginkgo biloba leaf extract during aging was written by Zhang, Guodong;Qi, Yulin;Hu, Boran. And the article was included in Shipin Kexue (Beijing, China) in 2010.Formula: C7H14O3 The following contents are mentioned in the article:

The present study aimed to analyze and compare the evolution of aromatic compounds in grape wines fermented with and without the addition of Ginkgo biloba leaf extract during aging. The aromatic compounds in grape wines were extracted by the solvent extraction method, analyzed by GC-MS and identified by the computer search technique. Totally 32 compounds were separated, among which 29 were identified, mainly including aldehydes, alcs., esters, and furans. There was an obvious difference in aromatic compounds between both freshly fermented grape wines. However, the difference became unobvious after 1 yr of aging and both aged grape wines exhibited similar kind and amount of aromatic compounds This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Formula: C7H14O3).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Formula: C7H14O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

A highly stereoselective synthesis of (E)-enol lactones by the Wittig reaction of cyclic anhydrides with (α-alkoxycarbonylethylidene)triphenylphosphorane was written by Tsuboi, Sadao;Fukumoto, Hirohumi;Wada, Hiroshi;Takeda, Akira;Fukuyama, Keiichi. And the article was included in Bulletin of the Chemical Society of Japan in 1987.Synthetic Route of C9H16O4 The following contents are mentioned in the article:

The Wittig reaction of Ph₃P:CMeCO₂R (I; R = Et, Me₃C) with glutaric anhydrides II (R¹, R³, R⁴ = H, Me; R² = H, Me, Ph) gave 13-86% exo-(alkoxycarbonyl)heptenolides III and 6-35% endo-(alkoxycarbonyl)heptenolides IV (R-R⁴ = same as above). (E)-III were obtained with high stereoselectivity. X-ray crystal anal. of III (R = Me₃C, R¹ = Me, R²-R⁴ = H) confirmed the stereochem. assigned. The Wittig reactions of I with adipic and azelaic anhydrides are also reported. This study involved multiple reactions and reactants, such as Ethyl methyl adipate (cas: 18891-13-9Synthetic Route of C9H16O4).

Ethyl methyl adipate (cas: 18891-13-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Synthetic Route of C9H16O4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Investigation of the Chain Transfer Agent Effect on the Polymerization of Vinylidene Fluoride was written by Stefanichen Monteiro, Igor;Mendez Ecoscia, Ana Carolina;McKenna, Timothy F. L.. And the article was included in Industrial & Engineering Chemistry Research in 2019.COA of Formula: C10H20O2 The following contents are mentioned in the article:

The effect of chain transfer agents (CTAs) Et acetate (EA), octyl acetate (OA), and iso-Pr alc. (IPA) on the rate of polymerization of vinylidene fluoride (VDF) in an emulsion polymerization and in solution polymerization in di-Me carbonate (DMC) initiated by tert-Bu peroxypivalate was investigated. Pressure profiles of the polymerizations were recorded. Solids content and rate of polymerization were calculated by gravimetry; size exclusion chromatog. was utilized to evaluate CTA activity, and the produced polymer microstructures were characterized by ¹H and ¹⁹F NMR spectroscopies. It is proposed that the observed reduction in polymerization rate in both systems is due to degradative chain transfer reactions. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1COA of Formula: C10H20O2).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.COA of Formula: C10H20O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Contributions from the Laboratories of the Heriot Watt College, Edinburgh. The synthetical formation of closed carbon chains. Part I (continued). Action of propylene bromide on the sodium compounds of ethyl acetoacetate and ethyl benzoylacetate was written by Perkin, W. H.;Stenhouse, James. And the article was included in Journal of the Chemical Society, Transactions in 1892.Category: esters-buliding-blocks The following contents are mentioned in the article:

The action of propylene bromide on the sodium compounds of ethyl acetoacetate and ethyl benzoylacetate was studied. Propylene bromide did not react with these compounds, the yield of ethereal salt obtained was very small . To obtain sufficient material for the experiments, the fraction of the ethereal salt boiling at 196°-225°, which consisted for the most part of ethyl acetylmethyltrimethylenecarboxylate was hydrolyzed. Acetyltrimethylenecarboxylate acid when treated with hydroxylamine in alkaline solution yielded an oxime proving that it contained a carbonyl group, this acid and acetylmethyltrimethylenecarboxylic acid were similarly constituted. Acetylmethyltrimethylenecarboxylic acid oxime melts at 153°-155° with decomposition. This study involved multiple reactions and reactants, such as Ethyl methyl adipate (cas: 18891-13-9Category: esters-buliding-blocks).

Ethyl methyl adipate (cas: 18891-13-9) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics